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<html>
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  Copyright 2008 Google Inc. All Rights Reserved.
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<head>
<title>Closure Unit Tests - goog.structs.InversionMap</title>
<script type="text/javascript" src="../base.js"></script>
<script type="text/javascript">
  goog.require('goog.structs.InversionMap');
  goog.require('goog.testing.jsunit');
</script>
</head>
<body>
<script type="text/javascript">
  function testInversionWithDelta() {
    var alphabetNames = new goog.structs.InversionMap(
        [ 0, 97, 1, 1, 1, 20, 1, 1, 1 ],
        [ null,
          "LATIN SMALL LETTER A",
          "LATIN SMALL LETTER B",
          "LATIN SMALL LETTER C",
          null,
          "LATIN SMALL LETTER X",
          "LATIN SMALL LETTER Y",
          "LATIN SMALL LETTER Z",
          null ],
        true);

    assertEquals("LATIN SMALL LETTER A", alphabetNames.at(97));
    assertEquals("LATIN SMALL LETTER Y", alphabetNames.at(121));
    assertEquals(null, alphabetNames.at(140));
    assertEquals(null, alphabetNames.at(0));
  }

  function testInversionWithoutDelta() {
    var alphabetNames = new goog.structs.InversionMap(
        [ 0, 97, 98, 99, 100, 120, 121, 122, 123 ],
        [ null,
          "LATIN SMALL LETTER A",
          "LATIN SMALL LETTER B",
          "LATIN SMALL LETTER C",
          null,
          "LATIN SMALL LETTER X",
          "LATIN SMALL LETTER Y",
          "LATIN SMALL LETTER Z",
          null ],
        false);

    assertEquals("LATIN SMALL LETTER A", alphabetNames.at(97));
    assertEquals("LATIN SMALL LETTER Y", alphabetNames.at(121));
    assertEquals(null, alphabetNames.at(140));
    assertEquals(null, alphabetNames.at(0));
  }

  function testInversionWithoutDeltaNoOpt() {
    var alphabetNames = new goog.structs.InversionMap(
        [ 0, 97, 98, 99, 100, 120, 121, 122, 123 ],
        [ null,
          "LATIN SMALL LETTER A",
          "LATIN SMALL LETTER B",
          "LATIN SMALL LETTER C",
          null,
          "LATIN SMALL LETTER X",
          "LATIN SMALL LETTER Y",
          "LATIN SMALL LETTER Z",
          null ]);

    assertEquals("LATIN SMALL LETTER A", alphabetNames.at(97));
    assertEquals("LATIN SMALL LETTER Y", alphabetNames.at(121));
    assertEquals(null, alphabetNames.at(140));
    assertEquals(null, alphabetNames.at(0));
  }

  function testInversionMapSplice1() {
    var alphabetNames = newAsciiMap();
    alphabetNames.spliceInversion(
        [ 99, 105, 114 ], [ "XXX", "YYY", "ZZZ" ]);
    assertEquals("LATIN SMALL LETTER B", alphabetNames.at(98));
    assertEquals("XXX", alphabetNames.at(100));
    assertEquals("ZZZ", alphabetNames.at(114));
    assertEquals("ZZZ", alphabetNames.at(119));
    assertEquals("LATIN SMALL LETTER X", alphabetNames.at(120));
  }

  function testInversionMapSplice2() {
    var alphabetNames = newAsciiMap();
    alphabetNames.spliceInversion(
        [ 105, 114, 121 ], [ "XXX", "YYY", "ZZZ" ]);
    assertEquals(null, alphabetNames.at(104));
    assertEquals("XXX", alphabetNames.at(105));
    assertEquals("YYY", alphabetNames.at(120));
    assertEquals("ZZZ", alphabetNames.at(121));
    assertEquals("LATIN SMALL LETTER Z", alphabetNames.at(122));
  }

  function testInversionMapSplice3() {
    var alphabetNames = newAsciiMap();
    alphabetNames.spliceInversion(
        [ 98, 99 ], [ "CHANGED LETTER B", "CHANGED LETTER C" ]);
    assertEquals("LATIN SMALL LETTER A", alphabetNames.at(97));
    assertEquals("CHANGED LETTER B", alphabetNames.at(98));
    assertEquals("CHANGED LETTER C", alphabetNames.at(99));
    assertEquals("LATIN SMALL LETTER D", alphabetNames.at(100));
    assertEquals(null, alphabetNames.at(101));
  }

  function testInversionMapSplice4() {
    var alphabetNames = newAsciiMap();
    alphabetNames.spliceInversion(
        [ 98, 1 ], [ "CHANGED LETTER B", "CHANGED LETTER C" ],
        true /* delta mode */);
    assertEquals("LATIN SMALL LETTER A", alphabetNames.at(97));
    assertEquals("CHANGED LETTER B", alphabetNames.at(98));
    assertEquals("CHANGED LETTER C", alphabetNames.at(99));
    assertEquals("LATIN SMALL LETTER D", alphabetNames.at(100));
    assertEquals(null, alphabetNames.at(101));
  }

  function newAsciiMap() {
    return new goog.structs.InversionMap(
        [ 0, 97, 98, 99, 100, 101, 120, 121, 122, 123 ],
        [ null,
          "LATIN SMALL LETTER A",
          "LATIN SMALL LETTER B",
          "LATIN SMALL LETTER C",
          "LATIN SMALL LETTER D",
          null,
          "LATIN SMALL LETTER X",
          "LATIN SMALL LETTER Y",
          "LATIN SMALL LETTER Z",
          null ]);
  }

</script>
</body>
</html>
